APA (7 वां संस्करण) प्रशस्ति पत्र
Karna, S. K. (2013). IES 2013 Electrical engineering: Objective papers I and II with detailed answers (2nd ed.). CBS Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Karna, Satish K. IES 2013 Electrical Engineering: Objective Papers I and II with Detailed Answers. 2nd ed. Kolkata: CBS Publishers, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Karna, Satish K. IES 2013 Electrical Engineering: Objective Papers I and II with Detailed Answers. 2nd ed. CBS Publishers, 2013.
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